Research Groups

[1038] Nutrition

The research group of Laurence Genton Graf and Tinh-Hai Collet focuses on several areas of nutrition. Professor Genton Graf is particularly interested in the gut microbiota. Her research focuses on the link between gut microbiota and the nutritional state and energy metabolism, which she studies in clinical and translational research projects. Dr. Collet focuses on chrononutrition. These lines of research intersect and lead to synergies, as in the Optishift study, which aims to understand the influence of night work on metabolism, sleep, nutrition and general health.

Ongoing projects

  1. Chewing efficiency measured by a two colour chewing gum test: a marker of insufficient nutritional intakes and percutaneous gastrostomy (PEG) necessity in amyotrophic lateral sclerosis (ALS) patients?

  2. Do branched chain amino acids counteract protein energy wasting through microbiota changes in hemodialysis patients?

  3. Does a fecal microbiota transplantation from patients with pancreatic cancer into mice affect murine cecal microbiota? A pilot interventional animal study

  4. COMALF-HUG, a prospective cohort of patients with alcoholic liver disease, designed to study correlations between clinical events and information from biological samples

  5. The metabolic effects and mechanisms of time restricted feeding in individuals with metabolic syndrome

  6. The molecular and functional interplay between circadian clocks and eating patterns

  7. Observational study for the development of a personalized intervention optimizing nutrition, activity, sleep and light exposure”


  1. Facultés de Médecine et de Pharmacie
  2. Cours aux étudiants de la HES
  3. Cours de la Société Suisse de Nutrition Clinique (SSNC-GESKES)
  4. Cours dans le cadre de l'ESPEN
  5. Formation approfondie en nutrition (Schwerpunkt FMH-ISFM)